I have just spoken to an apple representative on their support chat online. I told them that I had issues sending text messages and they ran me through some troubleshooting steps to try and resolve the problem. Every time I try send a text message it tells me it's not delivered.. When I have unlimited texts I don't see how that's possible. The advisor from Apple told me to contact vodafone and ask if they've put a block on my texts but there's no reason for that to happen? What on earth is happening? Can anybody help me please?